PHOTOSHOP compositing of premultiplied 3D

[jfrancis]

Here is a suggested workflow for compositing premultipled 3D over a bg in PHOTOSHOP:

The basic concept is to use LINEAR DODGE (arithmetic addition) to drop the beauty pass into a ready-made holdback matte.

http://www.digitalartform.com/archives/images/cgObjects4Comp.jpg

http://www.digitalartform.com/archives/images/rightWay1.jpg

http://www.digitalartform.com/archives/images/rightWay2.jpg

http://www.digitalartform.com/archives/images/rightWay3.jpg

http://www.digitalartform.com/archives/images/rightWay4.jpg

http://www.digitalartform.com/archives/images/rightWay5.jpg

http://www.digitalartform.com/archives/images/wrongWay1.jpg

http://www.digitalartform.com/archives/images/wrongWay2.jpg

http://www.digitalartform.com/archives/2005/10/compositing_pre.html

[titus]

Excellent tutorial!